Image of the Day: Single Origin
Despite being made of different materials, zebrafishes’ and land animals’ scales form in a similar process.
Sukanya Charuchandra
Aug 10, 2018
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The different stages of scale formation (magenta) in zebrafish
A.J. AMAN ET AL. (2018)
The scales of fish are made of bones, unlike the keratin-based scales of terrestrial animals. Despite these differences, the same genes direct the development of fishes’ bony scales and those of land animals, researchers reported in a paper published July 17 in eLife.
A.J. Aman et al., “Wnt/β-catenin regulates an ancient signaling network during zebrafish scale development,” eLife, doi:10.7554/eLife.37001, 2018.
